Dyadic fractional Sobolev spaces: Embeddings and algebra property

Fuente: arXiv
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Main Authors: Ruiz, Patricia Alonso, Fragkiadaki, Valentia
Format: Preprint
Published: 2025
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author Ruiz, Patricia Alonso
Fragkiadaki, Valentia
author_facet Ruiz, Patricia Alonso
Fragkiadaki, Valentia
contents This paper studies a dyadic version of fractional Sobolev spaces in $\mathbb{R}^n$ for $n\geq 1$. It provides new proofs of the corresponding fractional Sobolev embedding as well as the algebra property of the spaces, which rely solely on dyadic techniques and in particular bypass the Fourier transform. Specific counterexamples are constructed to verify the failure of the algebra property in low-regularity ranges.
format Preprint
id arxiv_https___arxiv_org_abs_2511_14877
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Dyadic fractional Sobolev spaces: Embeddings and algebra property
Ruiz, Patricia Alonso
Fragkiadaki, Valentia
Functional Analysis
46E35, 26A33, 42A99
This paper studies a dyadic version of fractional Sobolev spaces in $\mathbb{R}^n$ for $n\geq 1$. It provides new proofs of the corresponding fractional Sobolev embedding as well as the algebra property of the spaces, which rely solely on dyadic techniques and in particular bypass the Fourier transform. Specific counterexamples are constructed to verify the failure of the algebra property in low-regularity ranges.
title Dyadic fractional Sobolev spaces: Embeddings and algebra property
topic Functional Analysis
46E35, 26A33, 42A99
url https://arxiv.org/abs/2511.14877